<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:st1="urn:schemas-microsoft-com:office:smarttags" xmlns="http://www.w3.org/TR/REC-html40"> <head> <meta http-equiv=Content-Type content="text/html; charset=us-ascii"> <meta name=Generator content="Microsoft Word 11 (filtered medium)"> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="country-region"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="State"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="City"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="place"/> <o:SmartTagType namespaceuri="urn:schemas-microsoft-com:office:smarttags" name="PersonName"/>  <style>  </style> </head> <body lang=EN-US link=blue vlink=blue> <div class=Section1> I agree with Mark.  If you choose this way after testing some pieces, follow his advise. Actually, it’s very similar to rubbing out lacquers.  Make sure the sanding block you use is FLAT!!! Lay a straight edge from corner to corner diagonally and correct any deviation.  Sand the sand paper surface on a piece of 120 grit with light to moderate “down bearing.”  It’s quick and can save you from cutting through your finish.  If things go well but you get a few small bare spots, apply a few thin coats of the customer’s tung oil the right way.  They should buff out to match perfectly.  Don’t allow your sand paper to load with finish nibs. 3-4 strokes can create them.  The paper is cheaper than your time.<o:p></o:p> Is there any chance at getting any before and after pictures?<o:p></o:p> <o:p> </o:p> Paul C <o:p></o:p> <o:p> </o:p> <div> <div class=MsoNormal align=center style='text-align:center'> <hr size=2 width="100%" align=center tabindex=-1> </div> From: pianotech-bounces@ptg.org [mailto:pianotech-bounces@ptg.org] On Behalf Of Mark Potter Sent: Thursday, July 12, 2007 5:40 PM To: <st1:PersonName w:st="on">Pianotech List</st1:PersonName> Subject: Re: Tung Oil, Mishap<o:p></o:p> </div> <o:p> </o:p> <div> John -<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Stripping is a HUGE undertaking, and while it certainly may be called for (you can see it, we can't), I would definitely try wet-sanding a piece or two to see if this might level out the finish satisfactorily without spending 100+ hours of work.  Depending on just how rough it is, start with 320-400 to level, then move to 600, then 800.  Finish with 4/O steel wool, all done "wet" (with lubricant), in the direction of the grain.  Suitable lubricants can be 1) water-based: wol-wax, wool lube, murphy's oil soap thinned with water; or 2) solvent based: mineral spirits, naptha, paraffin oil, etc.   If you are incredibly lucky (it happens!), it will look great.  If not, well....<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Mark Potter John Ross <jrpiano@win.eastlink.ca> wrote:<o:p></o:p> </div> <blockquote style='border:none;border-left:solid #1010FF 1.5pt;padding:0in 0in 0in 4.0pt; margin-left:3.75pt;margin-top:5.0pt;margin-bottom:5.0pt'> <div> Someone had heard that they could refinish their piano with Tung oil.<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> Instead of using 0000 steel wool, a few times, with a rubout and dry, between coats, which does give a quite nice finish.<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> They did three coats, but used a brush, and didn't rub out between coats. The result is a thick non smooth finish.<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> What is the best way out of this, to end up as it should have been?<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> What can be used as a stripper? <o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> I was thinking strip, then use the 0000 steel wool, as should have been done initially.<o:p></o:p> </div> <div>  <o:p></o:p> </div> <div> John M. Ross <st1:place w:st="on"><st1:City w:st="on">Windsor</st1:City>, <st1:State w:st="on">Nova Scotia</st1:State>, <st1:country-region w:st="on">Canada</st1:country-region></st1:place> <a href="mailto:jrpiano@win.eastlink.ca">jrpiano@win.eastlink.ca</a><o:p></o:p> </div> </blockquote> <o:p> </o:p> </div> </body> </html>